body {
    font-family: Arial;
    height: 100%;
}

.wrapp {
    height: 100%;
    background: url("../img/bg.jpg") no-repeat;
    background-size: cover;
}

.content {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.content__block {
    background: white;
    padding: 10px 30px;
}